Cache WWT Wastewater Treatment Plant, Cache, Oklahoma

Cache WWT is a municipal wastewater treatment facility located in Cache, Oklahoma, serving a population of approximately 2,738 residents. The plant provides secondary treatment, a standard level for small communities in the United States, ensuring that effluent meets federal and state water quality standards before discharge. The plant has a designed capacity of 810.08 thousand gallons per day and currently treats an average daily flow of 605.67 thousand gallons. As a secondary treatment facility, it utilizes biological processes to reduce organic matter and suspended solids. The plant operates under the US Clean Water Act, with permits issued by the Oklahoma Department of Environmental Quality, ensuring compliance with National Pollutant Discharge Elimination System (NPDES) requirements. Treated effluent from Cache WWT is discharged into local streams that eventually flow into the Red River basin, which drains into the Gulf of Mexico. The plant plays a key role in protecting downstream water quality and supporting aquatic ecosystems in the region.

Cache WWT discharges into tributaries of the Red River, which flows through Oklahoma and Texas before emptying into the Mississippi River and ultimately the Gulf of Mexico. The local watershed supports diverse aquatic life and is important for regional biodiversity. The plant's secondary treatment helps reduce nutrient and pollutant loads, mitigating impacts on downstream water bodies.